Thermostatic valve for refrigerating apparatus



June 10 1924.

1,497,278 w s. JOSEPHSON THERMOSTATIC VALVE FOR REFRYGELRATING APPARATUS Filed April 26, 1923 7 Shaun atom C 3/ v Wallei'j. .fzscp/zyoa I I i2 .13

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Patented June 10, 1924,

UNITED STATES lAfilZ'ifi PATENT OFFICE WALTER S. JQSEPHSON. F DONG ISLAND CITY, NEW YORX ASSIGNOP. TO B. M J.

UTILITIES, INC, f NEW YORK. N. Y A CURPORATIDN OF NEW YORK.

THERMOSTATIC VALVE- FOR BEFlUGER-ATING APPARATUS.

Application filed April 26.

Be it known that l. lVAixrnu S. .Ioserueox a c tizen of the lniteii Htrilee. residing at Long Island City in the county of Queens and State of New York. have invented a new anrl useful Thermostatic Valve for Be frigerating Apparatus. oi which the followinn is a sperifimtion The object of my invention is to provide an improved lherznostativully regulated valve For attachmem to a mntainer of a gas eous suhstunre \vhiv'h has heeii rerluceii to a. liquid state. Huh an; :i tilil ifllll ronfainer of liquid carhon ilUX .ie. whereby the use of such a liquid as n refrigerant may be more efficiently accomplished. It is also my object to provide the novel omhinniiion of a coil in connection with such a valve and a container of a gaseous snhstance'which has been reduced to a liquid state; and to pro vide the novel romhination and arrangement of ports iiisrlosed in the acrompanyinp drawings, in n'hich-- F igure 1 is a side elevation of my invenlion applied to ii container of liquid carbon dioxide. the hand wheel controlling the valve of the container being shown in section to illustrate the mode of attaching the now de vice to a standard container;

Fig 2 is an enlarged longitudinal sectional view of myqievu-e; and

Fig. in a Sirle elevation of a modified form of my invention in which the refrigerating coil is interposed between the aforesaid ontainer and the nozzle, whereby to extend the area of refrigeration.

Like numerals indicate like parts in each of the several views Referring to the accompanying drawings. I provide a standard liquid arhon dioxide container 1, having! the manual val e -tem .2, hexagonal head 3 of the valve otenu hand wheel 4 mounted on and controlling head 3 of the valve stem, and the usual outlet 5 in the valve stem 2. I provide a nozzle 8, having a threaded end 7 and a suitable nut por-- tion 14 adapted to he engaged by the wrench for reedil attaching it to or removing it from the inieriorly threaded valve head 3. Nozzle R is provided with a bore 9. which is gradually tapered up to a point it), from which point there is provided the flared outlet 11. I provide suitable smell channels 12 opening into the bore 9 at its narrowest in union 16, to the end 0 1923. Serial No 834.787.

point l L Saul channels 12 being iiliagzonaily lisp/weal. as lmn'ii in Fig. 2. I also provide iiu lzn hannels l3 suiiahly disposed at o Point rearward of the channels 19, and opening into the horn 9, as Shown in Fig. 2. These channels preferably are nrrengeil in. staggered relation The numi ilesig' uotee a (one or plug of ice when will form in am] shut oil the flow of refrigerant through the nozzle 2? when the temperature of the gun container descends below the freezing point.

Referring to Fig. 3, I interpow between the nozzle 8 and the refrigernni container 3 n refrigerating co l 13, the emi pipe porlion 1?) of which is nuitablv attached. as the refrigerant container L while the other end 19 of the coil is Suitably attached, as by a, union 20, to the threaded enrl 7 of me nozzle 8.

In operation, the refrigeran lowing through the bore 9 of nozzle 8 sucks in air through. the channels 12 and ill. preventing the freezing of the re frigerunt in the outlet ii and permitting" of the plug of ire. 15 to form in the bore hack of the point i only utter the temperature of the chamber into which the gas container in pieced falls below the Freezing point. The refrigerant used in this container. whi h is carbon dioxide, is heavier than air and. therefore. a given ve locity more quickly overcomes pressure per square inch or takes the position of water flowing through an injertor past open peesages to a ressure as high an the pressure which supp ice the energy. In other words, the elocity of the refrigerant will carry through the bore 9 and outlet 1L suckin in air through the chminels 32 and 13 so tint the gas fi(,nviny r through the outlet ll mingled with air,

The plug of ice 15 alternately fozmfi. closing the hove 9. and then melts agailu releaeing the How of carbon dioxide to renew its function as a refrigerant, wherehv the noz zlo 8 functions automatically as a. thrmostntio valve.

What I claim is:

1. In combination with a container of a refrigerant of the class described. a nozzle (letar-hahly secured to said conta ner, amid nozzle having a. tapered bone extoniiog through the major portion of the n 116, said bore terminating in a short flared outlet, the nozzle having air passages opening into the bore at approximately its narrowest portion.

'2. In combination with :1 container oi :i refri erant of the rinse ilesrribeii, a. nozzle (letac ably secured to said rontainer. Slllli nozzle having a tapered bore QXielHiliHg through the major portion of the nozzle said bore terminating in :1 short flared ontlet, the nozzle having air passages opening into the bore at approximately its nari-mi-i-st portion, and a plurality of diagonally 21 rranged air passages opening: into the bore at its narrowest portion and at portions slightly back of the i'larrowesf portion of the bore. said passages living diagonally (lisposed relative to the hore.

3. In a devire of the (less (lPM'lllllll. the combination of a deluvhahle nozzle having a restricted passage lhorethrough, the most. restricted portion oi the passage being farthest from the point where the refrigerant enters the nozzle, the nozzle having (iiagonally arranged air passages opening: into the aforesaid passage at the 2\fl3l'l' illll re stricted portion, a container for rarhon iiioxide under high pressure. and :i refrigerating coil having one of its enils ih-tui-lmhly ronnerlml to the (-ontninei' :liHl having its other end nlvlachably (301ln"'ill to the nforo Fultl nozzle.

i. The voinhiniltion of n (filltllllil'i loronn hon rlioxille under high pressure. a refrigerating coil rletarhalily ronnerted to said rontainm: :1 nozzle ih-tachnhlv oonnecleil to the iii-frigi'rnlingr coil. Rai l nozzle having a lfiplllll hoi'o tln-rethrough. and having :1 fllll'(ll outhl. the nozzle aim having diagonal channels positioned in open into the horo at afiproxiinately ile must restrirteil portion snhetantially as nml for the purpose oicontrolling the low of refrigerant and incroae in: the eliiricni-y of the device as n rofrig erating means.

WALTER s. JfislilillHON.

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